EP 0238286 A2 19870923 - Automatic gain control apparatus.
Title (en)
Automatic gain control apparatus.
Title (de)
Schaltungsanordnung zur automatischen Verstärkungsregelung.
Title (fr)
Dispositif de commande automatique de gain.
Publication
Application
Priority
JP 5830386 A 19860318
Abstract (en)
The automatic gain control apparatus comprises rectifier means (1) for converting the level of a received signal into a DC voltage; comparing means (2) for converting said DC voltage into a first control signal (output 2); voltage generating means (3) responsive to said first control signal (output 2) and a second control signal (output 7) for generating an automatic gain control voltage (output 3); AGC circuit means (4) responsive to said automatic gain control voltage for controlling the amplitude of said received signal; detector means (8) for envelope-detecting the output of said AGC circuit means (4); analog/digital converter means (5) for converting the output of said detector means (8) into a digital signal; digital AGC controller means (6) for digitally processing the output signal of said analog/digital converter means (5); and digital/analog converter means (7) for converting the output signal of said AGC controller means (6) into an analog signal and supplying said second control signal (output 7).
IPC 1-7
IPC 8 full level
H03G 3/00 (2006.01); H03G 3/20 (2006.01); H03G 3/30 (2006.01)
CPC (source: EP US)
H03G 3/001 (2013.01 - EP US); H03G 3/3036 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 0238286 A2 19870923; EP 0238286 A3 19900404; EP 0238286 B1 19920610; AU 592274 B2 19900104; AU 7009287 A 19870924; CA 1270537 A 19900619; DE 3779683 D1 19920716; DE 3779683 T2 19930128; JP S62216511 A 19870924; US 4829593 A 19890509
DOCDB simple family (application)
EP 87302230 A 19870316; AU 7009287 A 19870317; CA 532230 A 19870317; DE 3779683 T 19870316; JP 5830386 A 19860318; US 2745787 A 19870318